Rely on the experience of the Sea Foam tech experts to help you with the most common, time-tested recommendations for using SEA FOAM SPRAY to clean gasoline induction systems.

Where should I apply Sea Foam Spray to my gasoline engine?

  • For 2 and 4-cycle INJECTION systems, spray continuously into the throttle body using Sea Foam Spray’s Hook Guide and Induction Cleaning Tube. (For quantities see below.)
  • For 2 and 4-cycle CARBURETOR systems, remove the air filter and spray into the carburetor throat using the Induction Cleaning Tube.
  • INTAKE treatments require engine warm up, tube placement, product application, hot soak and drive description. Please refer to easy-to-follow instructions on the can.
  • For lubricating cylinders and pistons for STORAGE, after intake fogging spray Sea Foam Spray into spark plug cavities.

How much Sea Foam Spray do I use to clean my gasoline engine?

  • When cleaning gasoline auto and truck intakes, use the entire can contents.
  • When cleaning small engines, use 1 ounce to 1/4 of a can. Smaller carburetor engines usually require as series of spray bursts (not continuous) to stay running while cleaning.
  • You will get better results when you also use with Sea Foam Motor Treatment in your fuel – The more Sea Foam you add to fuel, the better it cleans!
  • Sea Foam Spray only contains petroleum-based ingredients and CANNOT HARM your engine.
  • We recommend treating each gasoline engine you own at least one time per year.

How will Sea Foam Spray help my engine?

  • Sea Foam Spray is designed to deliver a high concentration of petroleum cleaning solvency into areas where gasoline fuel additives cannot reach.
  • Sea Foam Spray works to clean carbon deposits, sticky gum and varnish residues from intake systems, intake valves, pistons and combustion chambers.
  • Sea Foam Spray cleans and lubricates throttle plates, bushings, and upper cylinders.
  • When fogging gasoline engines for storage, Sea Foam Spray helps clean, lubricate and protect internal engine parts from getting dried out and corroded.


  • ST transition tip 460x248

Article: Fall Transition

3 KEY TERMS & TIPS for Preparing Engines and Fuel Systems for Long-Term Storage*:

*By long-term storage, we mean any fuel that won’t be utilized within 30 days from fuel purchase at the pump.



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Why Sea Foam Spray was invented

Sea Foam customer Jake Davis sent us this Sea Foam story:

“Here’s proof Sea Foam works. This was on a ’98 5.7 Vortec . I did the Sea Foam through the brake booster, which only feeds […]

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